Apparatus for coating objects with subdivided material.



F. F. BRADLEY. APPARATUS FOR COATING OBJECTS WITH SUBDIVIDBD MATERIAL. APPLICATION FILED FEB. 27, 1911.

1,068,735. Patented July 29, 1913.

4 f BRADLEY, or-cmcaco, ILLINOIS, nssrenon'ro BRADLEY "AND vnooy.m;a n ,comnm, 'or onioaeo. rumors, A conrona'rroir or" ILLINOIS.

' n'rrmrus FOR soar-me on'mc'rs wI'rH 'siirmvrnnnma'rnninr.

To all whom it mdycoacem: Q Be it-knownthat I, FRANKLIII F. BRAD- Lmr, cit zen of the-United States, residing at 51 of Illinois, have invented a certain new and useful Improvement inAipparatus for Coat-' ing Objects with -Subdivided'- Material, of

which the following. is a full, clear, concise,

and exactldescript on,"reference being had i 10. to 5thev8oompany ng drawings, forming a part of this specification. I

Myginyention relates to apparatus for coating. "objects, with I comminuted, subdivided lo powdered material and is of particular service in spreading bronze powder upon objects whose surfaces to' .becoated are 00V.-

,ered'or painted-with suitable adhesive ma-' terial or paint which in its fresh state holds i r the powder scattered thereuponand in its dry state firmly; fixes'the powder. in place.

" Inlfthe preferred way-of practising my invention, I employ a receptaclefor con-- mining the object'tha-tis to be coated .with

th'e powdered material, a fan or blower for '25 effecting forced circulation of air through the receptacle," and piping'which desirably 1 includes the blower and receptacle in serial 3' relation to establish a closed local path or circuit for the circulating air, though I do T not limit myself, to' this construction,

I have filed,- application for patents upon j apparatus ;for coating objects'with subdivided material as follows: 543-,-215, filed February. 11, 1910; Serial No.

v 550,415,:filed- March 18, 1910; Serial No., filed June 29, 1910; Serial No. 588,730, filed October 24,1910; Serial No;

588,731, filed October 24, 1910; Serial No.

603,251, filedJanuary 18, 1911; Serial No. '40. 603,726, filed January 20, 1911; Serial No.

-' 609,203, filed February 17, 1911, and Serial No 609,204, filed February 17 1911. Serial No. 609,204, filed Februaryl'l, 1911', shows the method of my invention.

In practising my invention I employ a-pparatus for coating objects with subdivided material carried by air. including means foreflecting the forced passage of air to; wa rd the object to be coated, and'an air defleeting formation .for causing movement of powder laterallyof the general direction in which it is being carried by the air.

I will explain my invention more-fullyby reference to the accompanying drawings Specification of were Patent. Application filed rebruar az 1911:, Se1 ia1No.6 1i',042.

Gh1cago, in the county of Cook and State- 'driven 'fan f,

Serial No.

. shoivviiig the preferred embodiment there of and in which.-. A

- 4 Patented July 29,1913.

Figure 1- is a view partially in section of the. preferred form of the apparatus; Fig. 2:1s a vertical section on line 2 2 of. Fig. 1; Fig. 3-is a vertical secti'ononline 3 3 of F g-.1-

Like partsare indicated by similar charv acters of reference throughout the different figures; The receptacle'a' is shaped suitably to the tion illustration being well adapted to receiye metal bedstead parts that are moved into objects to be received therein, the con'strucand out of the receptacle upon a truck 6 through a doorway 0,.a bedsteadpart d being illustrated within the receptacle. The

through may be doorway constitutes. an openin which the objects to be coate passed into. the receptacle interior in position to enable the air to be circulatedaround and toward the objects, and the door 0 constitutes a closure for said opening for preventing escape of material laden air there through while the objects areb'eing coated.

A section e-ofsuitable piping leads. from the air exit side of the receptacle to a power air entrance side of the receptacle located opposite the air exitside. The powdered 0r subdivided material, such der, .is admitted to the piping preferably through an upright-funnel z. The bafiie 0r deflecting-plate k is' disposed immediately before the opening at the end-oft-he pipe the receptacle opening through which opening air is received into section 9 adjacent-to other endsfof said legs being mounted upon the receptacle interior as illustrated. The

I the, complemental section 9- .of the piping leading from the fan to the as bronze powlegs I are fleXiblesothat'the position of the deflecting plate may be adjusted toward and from the air entrance opening and also the plane of the deflecting plate, the legs remaining in the shape to whichthey are flexed. Material-laden air finding access to the interior of the receptacle will encounter.

the battle plate 70 and will be deflected by the baflle plate toward the adjacent receptacle .wall portions and will find passage into the portion of the receptacle in front of the baiiie plate through the spaces that intervene between the legs Z and the space that intervenes between the periphery of the battle or deflecting plate and the adjacent receptacle wall portions. The deflecting formation causes movement of the subdivided material laterally of the general di- =rect1on in which such material is being carried by the stream of air moving within the receptacle. The material-laden air g thatstrikes the deflecting plate or formation and which passes into the spacein front of the baffle plate also impinges upon other receptacle wall portions and upon the perforated. wall portion m, whereby the air is caused to move in a multiplicity of directions and terial with which the air is laden to ex- I posed parts of the object t-o be coated.

These perforations cover anaggregate .area that is not in excess of a right cross section through the pipe 6. The airis caused to have a general movement through the receptacle interior and the place where the air has fullest yflow is oreferably arbitrarily governed by means ot-hand valves 0 p, the

upper valve 0 being interposed between the fan 7 and the subcompartment I through which air is conveyed toward'the fan" that passes through the upper half of the perforated wall portion The lower valve 7) is interposed between the fan and the subcompartment 9" through which subcompartmentair that finds passage through the lower half of the perforated wall m is .passed. By opening one valve and closing the other the place where the air-has fullest 1 .flow through the receptacle is altered and used andI use the term air by opening and closing the valves alter nately the air maybe guided througlrthe; receptacle to suit the needs of the work.

While I have used the term air throughout the specification and claims; it is obvious that any inert elastic fluid maybe ment of the subdividedmaterial laterally in the claims in this broad sense. I

While I have located the'ibaflle the place indicated, I do not wish to e.

limited to such location as other locations may be selected without departing from the spirit of my invention. While I have shown a type of machine in which the bafiie plate has been disposed, I do not wish to'be' limited to this typeof machine.

Having thus described my invention,

claim-as new and desire to secure by, Let-.

ters Patent the following v 1.'Ap-paratus for coating objects with.

subdivided material carried by air including a receptacle for the objects;'-mechanism for. forcing passage of air in the-receptacle in: astream; and an air"deflectingformation for causing movement of subdivided material laterall which it is be of\v the general direction in air moving within the receptacle.

2. Apparatus for' coating objects with: subdivided material carried by air including ing carried by the stream I means for effecting the forced passage of 2 air toward the object to be coated; and an" air deflecting formation for causing 'moveof the general direction in which it'is' being carried by the air.

3. Apparatus for coating objects with subdivided material carried by 'air includinga receptacle for the objects; mechanism for forcing passage of air in'th'e receptacle'and an air deflecting'formation for modifying the. direction of movement offthe "airto con-' vey materialwith which the'air is laden to exposed parts of the object that, are to be coated therewitlu I 4. Apparatus for coating :objects' with subdivided material carried by airincluding 4 1 av receptacle for the objects that serves; to

cause air forced tomove therein to flow in -1 a. stream, said receptacle having an opening .7 1

through, which objects to be coated may be passed into the receptacle interior; mecha hism for forcingpassageof ai-rkwithin-the:

receptacle 5 which receptacle operates 'upon the air to cause the air to move in a stream tofconvey the material withv which; the air,

is laden'to exposed parts. of the object that;

are to be coated; and anair deflectingfor 'mation for causing movement of subdivided inateriatlaterally {of the general .directiqn injwhich it is of'air within the receptacle.

" In witness whereof, I h reunto subscribe;

being carried bifithe-stream my name this twenty day ofv EebruaryJB FRANKLIN; r. a ting A '1 

